Two modes of action for proven control of grasses and tough broadleaf weeds, with rotational freedom.

  • Built-in adjuvant, for ease of handling and reduced fill-up times
  • Reliable control of a wider spectrum of tough grasses and targeted broadleaf weeds
  • Extended application window on grassy weeds
  • Multiple modes of action for management of resistant weeds

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Weed Management

Weed Class List of Weeds
Broadleaf - cotyledon to 4 leaf (except where indicated) Cleavers1 (1 to 4 whorls)
Cow cockle
Green smartweed2
Lamb’s quarters
Redroot pigweed
Round-leaved mallow1
Russian thistle
Shepherd’s purse
Volunteer canola3
Wild buckwheat1
Wild mustard
Grasses - 1 to 4 leaf stage up until early tillering Barnyard grass
Fall panicum
Green foxtail
Japanese brome grass1
Persian darnel
Proso millet
Volunteer barley
Volunteer canary seed
Volunteer corn
Volunteer durum wheat
Volunteer spring wheat4
Volunteer tame oats
Wild oats2
Yellow foxtail

1 Suppression only.
2 Including Group 1 resistant biotypes and Group 2 resistant biotypes. Solo Ultra will not control biotypes that are multiple-resistant to both Group 1 and 2 herbicides.
4 All varieties including Clearfield.

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How it Works

Solo Ultra herbicide is a tank mix of Solo ADV and Poast® Ultra herbicides that provides multiple modes of action for proven, reliable control of grasses and tough broadleaf weeds, including the management of resistant weeds, all with rotational freedom.

Application Tips

Note: Solo ADV may contain a small amount of sediment, which is completely normal. Always perform a triple rinse of the jug when preparing the spray solution.

Rainfastness – 3 hours.

Apply in warm weather to weeds that are actively growing.
Avoid applying immediately before or after a frost or during unseasonably cold weather. Treat when weeds are actively growing.

Pre-harvest interval

65 days after application for Clearfield lentils.
80 days after application for soybeans.
105 days after application for Clearfield sunflowers.

* Not on current label. This crop has been submitted to PMRA for approval and addition to the label.


Do not graze treated Clearfield lentils or soybeans or cut for hay within 20 days of application.
Do not graze treated Clearfield sunflower plants or cut for straw.

When to Apply

Crops Staging
Clearfield lentils 1 to 9 node
Clearfield sunflowers 2 to 8 leaf
Soybeans cotyledon to 4 leaf

How Much to Apply

One case will treat 40 acres.

(a) Solo ADV herbicide 325 ml/ac (800 ml/ha)
(b) Poast Ultra herbicide 154 ml/ac (380 ml/ha)*

Water volume

Ground application only 40 L/ac (10 gal/ac)

*The rate of (b) can be topped up to provide additional control of quackgrass and suppression of foxtail barley.

Mixing order

  1. When applying Solo Ultra, always start with a clean sprayer. Refer to previously applied product labels for specific cleaning instructions.
  2. Fill the clean tank with 1/2 to 3/4 of the required amount of clean water and start agitation system. Agitation should be running during the entire mixing procedure.
  3. Add the correct amount of (a) Solo ADV and continue to agitate.
  4. Add the correct amount of (b) Poast Ultra while agitating the spray solution.
  5. Continue the agitation while filling the spray tank with the remaining amount of water.
  6. Maintain continuous and constant agitation throughout application until spraying is complete.

Follow Crops

1 year after application
Durum wheat
Field corn
Field peas
Field peas
Lentils (incl. Clearfield lentils)
Spring barley
Spring wheat
Sunflowers (incl. Clearfield sunflower)
Tame oats

2 years after application
Mustard (condiment type only)

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Product Specifications

Product Article #: 59014455
Gross Weight of Package: 14.7 kg
Units/Pallet: 30 Cs
Pallets/TL: 24
Units/TL: 720 Cs
Warehouse Stack Height: 3 High
Heated Storage: Protect from temperatures below -5°C
Protect from temperatures above 40°C

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